<template>
  <el-breadcrumb class="breadcrumb" separator="/">
    <transition-group name="breadcrumb">
      <el-breadcrumb-item v-for="(item, index) in breadcrumbData" :key="item.path">
        <!-- 不可点击项 -->
        <span v-if="index === breadcrumbData.length - 1" class="no-redirect">{{
            item.meta.title
        }}</span>
        <!-- 可点击项 -->
        <a v-else class="redirect" @click.prevent="onLinkClick(item)">{{
            item.meta.title
        }}</a>
      </el-breadcrumb-item>
    </transition-group>
  </el-breadcrumb>
</template>

<script lang="ts" setup>
import { ref, watch } from 'vue'
import { RouteLocationRaw, useRoute, useRouter } from 'vue-router'
import { useStore } from 'vuex'

const route = useRoute()
// 生成数组数据
const breadcrumbData = ref<any>([])
const getBreadcrumbData = () => {
  breadcrumbData.value = route.matched.filter(
    item => item.meta && item.meta.title
  )
}
// 监听路由变化时触发
watch(
  route,
  () => {
    getBreadcrumbData()
  },
  {
    immediate: true
  }
)

// 处理点击事件
const router = useRouter()
const onLinkClick = (item: { path: RouteLocationRaw; }) => {
  router.push(item.path)
}

// 将来需要进行主题替换，所以这里获取下动态样式
// const store = useStore()
// eslint-disable-next-line
// const linkHoverColor = ref(store.getters.cssVar.menuBg)
</script>

<style lang="less" scoped>
.breadcrumb {
  display: flex;
  font-size: 14px;
  justify-content: center;
  align-items: center;

  & .no-redirect {
    display: inline-block;
    color: #fff;
    cursor: text;
  }

  & .redirect {
    display: inline-block;
    color: #fff;
  }
}
@media screen and (max-width: 768px)  {
  .breadcrumb {
    display: none;
  }
}
</style>
